CN1879281A

CN1879281A - Long stator comprising a ground conductor and maglev railway that is equipped with said stator

Info

Publication number: CN1879281A
Application number: CNA2005800012351A
Authority: CN
Inventors: J·布劳恩; S·孔茨; M·鲍尔
Original assignee: ThyssenKrupp Transrapid GmbH
Current assignee: ThyssenKrupp Transrapid GmbH
Priority date: 2004-03-25
Filing date: 2005-03-22
Publication date: 2006-12-13
Anticipated expiration: 2025-03-22
Also published as: EP1728310A1; US20070281517A1; US20070216233A1; CN1879281B; CN1860666A; WO2005096478A1; DE102004015096A1; EP1728311A1; WO2005096479A1; US7563984B2; CN1860666B

Abstract

The invention relates to a long stator and to a maglev railway that is equipped with a stator of this type. The long stator contains a plurality of stator sections (1a, 1b) that are arranged one behind the other and adjoin one another at isolating points (22), said sections having grooves (2) that follow on from one another in a longitudinal direction and house an alternating current winding and at least one ground conductor (17) for the alternating current winding, said conductor running in the longitudinal direction of the long stator. According to the invention, the ground conductor (17) comprises, at least in the vicinity of critical isolating points (22), a conductor section (25) that bridges the isolating point (22) and is configured as a loop (24).

Description

The long stator and the magnetic suspended railway that described stator is housed that comprise earthing conductor

Technical field

The present invention relates to the long stator of kind described in a kind of preamble as claimed in claim 1, and relate to a kind of magnetic suspended railway of the general conception according to claim 21.

Background technology

For the magnetic suspended railway with long-stator linear motor, long stator and guide rail are arranged side by side, and the three-phase alternating current winding is inserted in the groove of this long stator, and this winding for example comprises copper or aluminium cable and centers on its insulating barrier.Because voltage difference occurs along the inductive effect of winding in normal running, and because the electric current that causes thus can flow, so be known that (DE 30 06 382C29): the additional external sheath of being made by electricity isolation plastic material is provided to winding, by means of carbon black, graphite, copper mesh or otherwise make electricity isolate plastic material to conduct electricity at least in part, so that discharge these and other electric current; Assurance is for the fail safe of contact with for other reason; Reach this sheath in each grooved area is connected on the earthing conductor that extend side by side with long stator.In order to guarantee between sheath and earthing conductor, to obtain little transition resistance, the way of knowing in addition is (DE 196 20 222 C2), by means of device the winding sheath is connected on the earthing conductor, these devices comprise part around the sleeve of winding and the Connection Element that is used for earthing conductor, and described winding is inserted in the groove of long stator.Plan to be based upon on the one hand bigger contact the between sheath and the sleeve thus, Connection Element plans to allow simple connection for earthing conductor on the other hand simultaneously.For fear of corrosion, sleeve and Connection Element are made by stainless steel.

Earthing conductor is made of good conductive material (for example copper) up to now.They are connected on the earth potential at selectable Dian Chu with selectable frequency, and are provided with conducting plastic expansion cover so that anti-corrosion protection and contact protection to be provided as AC Windings.

In the actual use of magnetic suspended railway, two basic weakness in said apparatus, have been appeared.The plastic sheath of finding on the one hand earthing conductor burnt at a plurality of somes place after longer operation period.Such burning a little of indication thermal overload can not be allowed.On the other hand, fire and/or carbonization point also appear in the sheath of long stator winding itself, and sheath becomes fragile gradually and begins decomposition whereby.This also can not allow.

For fear of these two weakness, in the unpub German patent application of submitting to by same applicant 10 2,004 015 096.6, propose, produce earthing conductor by non-corrosive metal (for example by stainless steel) specially.Be intended to prevent following situation thus, promptly, when electric current when sleeve is transferred on the earthing conductor, owing to the small offence of Connection Element is crossed the thermal peak load that cross section undesirable high transition resistance occurs and therefore occurs, this peak load surpasses the heat load ability to bear of the plastic insulation of earthing conductor, and therefore just causes when their are maximum and burn.

Yet, by use make by stainless steel etc. and feature be the earthing conductor of high tensile, another problem will appear.The long stator of described kind comprises a plurality of stationary parts, this stationary part on the longitudinal direction of the guide rail that is used for magnetic suspended railway one be arranged in another back, and locate to be adjacent to each other at burble point (contact).Because (for example being arranged in those some places of switch region) at some contact place, the motion of switch, the distance of these stationary parts must be able to change several millimeters.The stretch-proof earthing conductor can not be followed these and be changed, if for example consider on the whole length of switch that these variations may be accumulated to bigger value, then the stretch-proof earthing conductor can not be followed these variations especially.Therefore, power is applied to Connection Element by earthing conductor, and this Connection Element can plastically be out of shape, and reduces the clamping effect thus, and thereby also reduces the size of the contact area between sleeve and earthing conductor.This may finally cause the inefficacy that contacts between sleeve and earthing conductor, and this inefficacy is by the swing and vibration even the acceleration that occur during operation.Even can not get rid of the fracture of earthing conductor.Corresponding problem may appear at as the contact in the switch region other burble point (contact)-hereinafter referred for " critical " burble point-the zone in.

Summary of the invention

Thus, the objective of the invention is to, the long stator of the above indication of structure kind in such a way, thus change the electric inefficacy that contacts that can not cause between sleeve and the earthing conductor in the necessity of the distance between the adjacent stators part.And, plan to propose a kind of magnetic suspended railway that a kind of like this long stator is housed.

Characterization feature in

claim

1 and 21 is with solving this purpose.

The present invention has this advantage, promptly in the zone of critical burble point, set up the earthing conductor deposit by the loop in earthing conductor, this earthing conductor deposit is under the situation of the variable in distance between the long stator part, supply with and receive that those are required so that these variable in distance become possible quantity of material part, and this does not cause for any tensile stress of actual earthing conductor or for any excessive load of Connection Element etc.

Other favorable characteristics of the present invention is become obvious by dependent claims.

Description of drawings

Given some embodiment, based on added accompanying drawing explain the present invention in more detail, in the accompanying drawings:

Fig. 1 schematically represents to be used for the stereogram of long stator of the linear electric motors with three-phase alternating current winding of magnetic suspended railway;

Fig. 2 is illustrated in during the insertion of winding in the zone of groove the front view according to the long stator of Fig. 1;

Fig. 3 is illustrated in earthing conductor and is inserted into according to the stereogram according to the winding of Fig. 1 that does not have long stator after in the sleeve of the present invention;

Fig. 4 be illustrated in the switch region and have in the switch region part and a diagrammatic side view according to the long stator of device first embodiment of the present invention;

Fig. 5 and 6 represents amplification front view and the end view according to the clamping connector of the device of Fig. 4 respectively;

Fig. 7 represents the end view according to Fig. 4 of the second embodiment of the present invention;

Fig. 8 represents the stereogram according to the anchor clamps of the embodiment of Fig. 7;

Fig. 9 represents the end view according to Fig. 3 of the third embodiment of the present invention;

The front isometric view of the embodiment of Figure 10 presentation graphs 9;

Figure 11 to 16 is respectively with front view, upward view, vertical view, rearview, end view and the stereo representation erecting device according to the embodiment of Fig. 9 and Figure 10;

Figure 17 is illustrated under the pre-assembled state of part details according to the erecting device of Figure 11 to Figure 16 with amplification stereogram;

Figure 18 represents the stereogram of Figure 10 of a fourth embodiment in accordance with the invention;

Figure 19 represents to be used for the sheet metal blank according to the production of the erecting device of Figure 11 to Figure 16;

Figure 20 and Figure 21 are illustrated in the stereogram of each stage of production period according to the erecting device of Figure 11 to Figure 16, and

Figure 22 to Figure 27 represent two other pieces at them and front view and stereogram according to the erecting device after separating of Figure 20.

Fig. 1 represents to be used for the part of long stator 1 of the linear electric motors of magnetic suspended railway.In preselected distance, long stator 1 has groove 2, groove 2 with the direction of its longitudinal axis 3 traversed bies on structure continuously so that hold three-phase alternating current winding 4.For example, the reaction part of levitation train that is provided with the carrying magnet at the downside place of long stator 1 longitudinally the direction of axis 3 be directed to.A kind of so general installation of long-stator linear motor and operator scheme are well-known for those skilled in the art, for example learn that by publishing communique De 39 17 058 C1 this communique forms integral part of the present disclosure thus for the purpose of repeating.

According to Fig. 2, each is outwards and/or the perforation groove 5 that opens wide downwards for a groove 2, and by wall 6 constraints, wall 6 has the inwardly outstanding projection 6a that stands toward each other, and have each other at the narrowest some place than with the corresponding little distance of the external diameter of winding 4.

Represent on external Fig. 2 like this like that, the part of wall 6 that is positioned at the both sides of groove 2 is provided with each near support shoulder 7 that opens wide slit 5.Two bottom longitudinal edges 8 of sleeve 9 are supported on these and support on the shoulder 7, and described sleeve comprises the thin stainless steel metal plate that is shaped according to wall 6.Sleeve 9 is preferably flexible, being pressed in the groove 2 on the direction that allows the arrow that it represents in Fig. 2, snaps into the position up to longitudinal edge 8 supporting shoulder 7 back.Thus, sleeve 9 is fixed in the groove 2 under non-rotatable state then, and is fixed with slip-off preventing.

Wall 6 has those local places of its projection 6a therein, and sleeve 9 correspondingly is shaped, thereby after sleeve 9 had inserted, groove 2 had contraction flow region 10.

Because winding 4 is strain a little, so they after sleeve 9 has inserted, also can be pressed on the direction of arrow of drawing in the groove 2, flexibly snaps into the position up to them in contraction flow region 10 back, and is fixed with slip-off preventing thus.

The structure of groove 2 and sleeve 9 is well-known for those skilled in the art, for example learns that by publishing communique De 196 20 222 C1 this communique forms integral part of the present disclosure thus for the purpose of repeating.

The further details of sleeve 11 is become obvious particularly by Fig. 3.Thereby sleeve 11 is admitted shells 12, and the profile of this shell 12 is substantially along the profile of cylindrical surface, and the profile of this shell 12 is so big, and is more thereby it is centered around half of winding 4 under the installment state.The length of shell 12 on its longitudinal axis direction is substantially corresponding with the length of groove 2, thus it after inserting on its whole length complete filling groove 2.At an axial end place, sleeve 9 has the catch of brace 15 forms, and the Connection Element 16 that is used for earthing conductor 17 is fastened to this brace 15.Connection Element 16 preferably includes resilient channels, and earthing conductor 17 can flexibly be pressed in this resilient channels and be fixed by non-disconnectable thus with removing.

The common structure of winding 4 also can obviously be found out from Fig. 3.Thereby winding 4 comprises the good core 19 of multiply conduction, around its high-voltage insulation layer 20, and described layer 20 of parcel and the external jacket 21 made by plastic material, this plastic material for example has been formed up to the small part conduction by means of carbon black etc.Thereby insulating barrier 20 and sheath 21 are elastic force, and/or can compress in certain limit.

Become clearly by Fig. 3 at last, each straight line of the winding 4 between the winding head twines thigh and is provided with the sleeve 11 that is inserted in the groove of not representing 2 here.Inserted after the sleeve 11, Connection Element and/resilient channels 16 coaxially one be positioned at after another so that jointly admit the earthing conductor 17 that extends along the longitudinal direction of guide rail.

Sleeve 11 is made by the stainless steel metal plate fully, for example by using common forming

step building block

15 and 16 is molded on the sleeve 11 after punch steps.

According to Fig. 3, Connection Element 16 is admitted earthing conductor 17.In order to guarantee also to obtain having the good contact of very little transition resistance here, brace 15 and resilient channels 16 are the large tracts of land structure.This is especially suitable in view of the less flow cross section of these parts of the sleeve 11 of comparing.And the present invention only produces earthing conductor 17 by corrosion resistant metal.Thus, if avoid using common insulating barrier as always then the problem that occurs, this problem occurs in the zone of sharp edge contact point.In addition, earthing conductor 17 by making with sleeve 11 identical materials, is promptly made by stainless steel expediently, if so that even get rid of and to use undesirable metallic combination, Cu/Fe for example is then because those interference that the electrochemical voltage grade occurs in the zone of contact point, for example as contact corrosion.And it has the following advantages, thereby promptly stainless steel is the etch-proof other corrosion protection layer that do not need.Yet, replace stainless steel, also can use other resistant material, for example tin-coated copper, titanium etc.Last another advantage is, owing to there not being insulating barrier, so the current capacity ability ampacity between Connection Element 16 and earthing conductor 17 is significantly bigger.

In addition, earthing conductor 17 is advantageously made by the stainless steel hawser, even it also can be configured to thick rod or opposite.

As representing on Fig. 4 particularly, long stator 1 is usually included on the direction of its longitudinal axis 2 one and is arranged in another back and at a plurality of stationary part 1a, the 1b of burble point 22 place's adjacency.Respectively at critical contact or burble point 22 places, for example be arranged in not accurately those some places in the zone of the switch of the guide rail that is used for magnetic suspended railway of expression, may require, several millimeters relative motion can be carried out in the end of stationary part 1a, the 1b adjacent with burble point 22.The stainless wirerope 17 of inflexibility does not allow such motion usually.

Therefore be provided as according to the present invention, separate (division) earthing conductor 17 in the zone of the critical burble point between

long stator part

1a, 1b, and protect the end that so obtains to avoid hoisting by the safeties 23 of any kind of.For example, the tubular tip parts 23 that are pulled on the resulting end and are extruded then are applicable to this purpose.The end of the earthing conductor 17 that so obtains for example is electrically connected each other by the connector 25 of slight curvature, described connector 25 is provided with loop 24 or is configured to loop and preferably by making with the earthing conductor identical materials, and the end that wherein is positioned at the described connector 25 on the both sides of burble point 22 is fastened to two of earthing conductor 17 by means of clamping connector 26 and cuts on the ends.Thereby, loop 24 constitutes the elasticity deposit part of earthing conductor, this elasticity deposit part bridge joint burble point 20 as arch bridge, and can supply with or be received in the quantity of material that needs under the situation of variable in distance of

long stator part

1a, 1b, and this can not cause for any tension stress of actual earthing conductor 17 or for any excessive load of Connection Element 16 etc.

According to Fig. 5 and Fig. 6, clamping connector 26 is for example by make the suitable end that described part is held conductor segment 25 and held earthing conductor 17 on the other hand on the one hand between them by means of anti-corrosion screw 27 attachable two part 26a and 26b.And a part (for example 26b) is provided with the anti-twist element 28 of form such as web, and this anti-twist element 28 is embossed on this part, and under mounting condition itself pasting long stator 1 sidewall and thereby prevent clamping connector 26 do not wish distortion.

Based on these measures of above general introduction, realization be: earthing conductor 17 nonoverloads in the burble point zone, and be increased in the service life of the sleeve 11 in these zones.Suitable loop also can be installed in other intersection between long stator part or the earthing conductor end.

Described clamping connector 26 according to Fig. 4 fully by supporting itself in being connected between earthing conductor 17 and the conductor segment 25.Therefore, clamping connector 26 is carried jointly by earthing conductor 17, and if earthing conductor 17 wave then will be energized and wave.Shortcoming may show it is the deadweight of clamping connector 26.Described weight can act on the earthing conductor 17, and may play wobble quality.

Therefore, in the second embodiment of the present invention according to Fig. 7 and Fig. 8, be provided as and in the zone of burble point 22, do not cut off earthing conductor 17, but conductor segment 31 is formed the loop 32 of the earthing conductor deposit that hope is provided equally, described conductor segment 31 bridge joint burble points 22, and make and be connected on the earthing conductor 17 with single type structure with described earthing conductor 17.Consider the low flexibility and/or the high rigidity of stainless steel cable, contingently be that earthing conductor 17 is jumped out from a plurality of Connection Elements 16, the result is a no longer ground connection of undesirable a plurality of sleeve 11.According to the present invention, therefore also be provided as, the conductor segment on the both sides of burble point 22 31 is connected with 1b securely with adjacent stator segment 1a.This realizes by means of the anchor clamps 33 (also seeing Fig. 8) that each comprises preferably the material strip of being made by stainless steel in an embodiment, and these anchor clamps 33 have estimates to be used to hold conductor segment 31 and by 360 ° of receptacles that obtain 34 of material strip replication and two construction sections 35 adjacent with this receptacle 34.Receptacle 34 can pass through to launch construction section 35 around conductor segment 31 layouts, and fastened by means of hold-down screw 36 then.Thereby insert in the hole 37 that hold-down screw 36 can for example be passed in the construction section 35, and be screwed to then in the screwed hole that is provided among stator segment 1a, the 1b, and conductor segment 31 can axially immovably be fixed in the anchor clamps 33 by clamping simultaneously whereby.By this way, might make loop 32 shorter, and guarantee that it is connected on stator segment 1a, the 1b securely, there are no more than two

groove

2a, 2b in the some place between this

stator segment

1a, 1b, as shown in Figure 7.So the advantage that realizes is, layout may be selected to, (promptly directly adjacent with burble point 22) those two sleeves 11 of

groove

2a, 2b that only are arranged in two

stator segment

1a, 1b are earth-free, because here loop 32 is jumped out from relevant connection element and/or resilient channels 16, yet this is to the not influence of ground connection of whole system.In contrast, earthing conductor 17 is securely held in sleeve 11 all other sleeves 11 of neutralization of

adjacent grooves

2c, 2d by means of anchor clamps 33, thereby obtains the ground connection of hope at this.

The prerequisite that realizes in the embodiment according to Fig. 7 and Fig. 8 is,

stator segment

1a, 1b are provided with near the screwed hole that is used for fixing screw 36 that is positioned at the critical burble point 22.In Fig. 9 to 17 expression and currently think in the best third embodiment of the present invention, this is by providing erecting

device

39a, 39b to be avoided on each side of burble point 22, described erecting device is fastened on cross member 40a, the 40b by clamping action, and this

cross member

40a, 40b are used for associated

stator section

1a, 1b are installed to here the not guide rail that is used for magnetic suspended railway of expression.Be usually placed in the dovetail groove at upside place of

stator segment

1a, 1b and by means of screw 41 be fastened to such cross member 40 on the guide rail generally be known (for example, DE 39 28 277C1, DE 197 03 497 AI), and therefore they needn't be explained in more detail.Only will should be mentioned that cross member 40 has design and the bottom (Figure 10) that have side 42 according to dovetail groove, this side 42 is also outward-dipping downwards.

Erecting

device

39a and 39b preferably have same structure, and this is the reason that hereinafter only describes erecting device 39a why in detail.

According to Figure 11 to 16, erecting device 39a side place thereon has two pairs first and

second director elements

43 and 44, this first and

second director element

43 and 44 is relative to each other stood (Figure 11) with so preselected distance, thereby they are in the admittance space 45 that limits the bottom be used for holding associated transverse parts 40a (Fig. 9,10) each other.For this purpose, first director element 43 arranges obliquely and/or as the roof according to side front 42, and so is shaped, thus when erecting device 39a from the front side of cross member 40a near the time, they can be positioned on two sides 42, as concrete expression among Fig. 9 and Figure 10.On the contrary, second director element 44 so arranges and structure, thereby when erecting device 39a was pulled on the cross member 40a, second director element 44 was in abutting connection with downside 46, as become from Figure 10 obvious.And,

director element

43 and 44 preferably relative to each other is arranged to, when being pulled to cross member 40a and going up, they flexibly separate by means of a little pressure, thereby when erecting device 39a has been pulled on the bottom of cross member 40a, it (promptly is parallel to screw 41) in vertical direction and is connected on the cross member 40a in shape locking (positive) mode substantially, and therewith vertically (promptly on the direction of cross member axis), erecting device 39a is connected on the cross member 40a by the clamping action mode of power locking (promptly with).This is equally applicable to being connected of erecting device 39b and cross member 40b.

As on Figure 11 to Figure 17, representing particularly, 39a is installed comprises rectangle, L shaped base part 47 (Figure 11) with longitudinal axis 48.Under by the installment state of Fig. 9 and 10 shown in obviously, base part 47 forms the rear side of erecting device 39a and in abutting connection with associated stator section 1a, longitudinal axis 48 and the longitudinal axis 3 (Fig. 1) of stator segment 1a is arranged abreast.And in the outside away from the

director element

43,44 of admitting space 45, erecting device 39a has two

clamping connectors

49 and 50 of the Different Plane of being arranged in, as particularly representing among Figure 11 to Figure 16.Thereby, longitudinally measure on the direction of axis 48, arrange with bigger distance at clamping connector 49 to two clamping connectors 50 of lower flat.

Each clamping connector 49 comprises and being installed on the base part 47 and from its vertically outstanding tongue 51, the other piece 52 relative with tongue 51, both clamp screws 53 of stretching out of passing them and be screwed to nut 54 on this screw at a certain distance.In a similar manner, each clamping connector 50 comprises and being installed on the base part 47 and from its vertically outstanding tongue 55, the other piece 56 relative with tongue 55, both clamp screws 57 of stretching out of passing them and be screwed to nut 58 on this screw at a certain distance.Each is supported on the head of

clamp screws

53,57 and

nut

54,58 respectively on the outside of

tongue

51,55 or

other piece

52,56.

In embodiment according to Fig. 9 to Figure 17, similar with Fig. 7 and Fig. 8, the earthing conductor 17 that is combined to form loop 24 with separate conductor section 25 is set, this earthing conductor 17 strides across burble point 22 as bridge.As in being illustrated in Fig. 9 and Figure 10 particularly, the two ends of conductor segment 25 are inserted in two clamping connectors 50, and clamp screws 57 is screwed on the nut 58 subsequently, thereby the end of conductor segment 25 is clamped between tongue 55 and the other piece 56 securely.Selectively, these ends only can be fixed in the clamping connector 50 of more close burble point 22 layouts, perhaps are arranged in two clamping connectors 50 of erecting

device

39a and 39b, as only representing with the partial view of clamping connector 49 on Figure 17.On the contrary, the free end of earthing conductor 17 is inserted in the clamping connector 49 in a similar manner, and be clamped in securely between tongue 51 and the other piece 52 by tightening clamp screws 53 and nut 54, wherein these ends selectively only are fixed in the clamping connector of arranging away from burble point 22 49, as representing among Fig. 9 and Figure 10, preferably be fixed in two clamping connectors 49 of erecting device 39a and 39b.Any bending for fear of earthing conductor 17, erecting

device

39a, 39b be structure like this advantageously, thereby tongue 51 and those parts of other piece 52 that earthing conductor 17 is clamped in are therebetween evenly arranged with the Connection Element 16 of sleeve 11 being in installment state following time.

In addition, as in embodiment according to Fig. 4 to Fig. 6, this embodiment produces this advantage, be that the free end of earthing conductor 17 and/or the safeties 23 that are installed on them can be very arranged near burble point 22, as particularly representing among Fig. 9, and therefore, be arranged in two groove 2a of next-door neighbour's burble point 22 and the sleeve 11 among 2b ground connection well.Different with Fig. 7, as not have the free end of earthing conductor 17 from the Connection Element 16 of these sleeves 11, to jump out danger.

According to the 4th embodiment that in Figure 18, represents, similar with Fig. 7, the conductor segment 31 of the critical burble point 22 of bridge joint is provided and forms loop 32 by giving earthing conductor 17, erecting device 39a, the 39b of Fig. 9 to Figure 17 are applicable to continuous ground conductor 17.For this purpose, being pulled on the both sides of burble point 22 on cross member 40a, the 40b who is provided at the there, adjoin associated

stator section

1a, 1b according to two erecting device 39a, the 39b of Figure 18 up to them.Subsequently, earthing conductor 17 for example is inserted in the clamping connector 49 under the situation that forms loop 32 by means of the clamp screws 53 of having unclamped, and is securely held between tongue 51 and other piece 52 by tightening clamp screws 53 and/or nut 54 then.In this case, the anchor clamps 33 that clamping connector 49 replacements of more close burble point 22 are represented in Fig. 7 and Fig. 8, because by means of these clamping connectors 49, although guarantee to form loop 32, earthing conductor 17 still remains in these sleeves 11 reliably, this sleeve 11 is disposed among adjacent groove 2c, the 2d, as knowing that on Figure 18 the face of land shows.

The embodiment that describes by Fig. 9 to Figure 18 has advantage: erecting

device

39a, 39b cause the clamping of earthing conductor 17 and/or

conductor segment

25,31 on the one hand, and it is fastened on stator segment 1a, the 1b.Avoid thus: erecting device 39,39b are delivered to additional vibration, wave etc. on these leads, and hinder the grounding function of their hope.Particularly, opposite with Fig. 4 to Fig. 6, the dead weight of erecting

device

39a, 39b can not be delivered to any power on earthing conductor 17 and/or the conductor segment 25,31.At last, the embodiment example of Fig. 4 to Fig. 6 and Fig. 9 to Figure 17 also produces advantage: provide the

conductor segment

25,31 of lead deposit can distinguish and be connected securely with

clamping connector

26 or 50 respectively at the factory place of manufacturer, thereby, only need to set up connection for earthing conductor 17 in build on-site.

The clamping connector of describing 26 and erecting

device

39a, 39b and relevant components parts preferably by making with earthing conductor 17 and

conductor segment

25 and 31 identical materials, are promptly for example made by stainless steel, so that get rid of any contact corrosion of above general introduction.

Think best embodiment according to current,

retainer

39a and 39b are by following production (seeing Figure 19 to 27):

At first, preferably the sheet metal that for example about 2mm that is made by stainless steel is thick cuts by laser cutting, punching press or any other form in the mode of representing in Figure 19.In central region, septum blank 61 comprises base part 47 (seeing Figure 11 to Figure 16), and substantially vertically to one side-prominent, and two thin slice hinged

joints

64,65 are outstanding to opposition side in addition from 47, two thin slice hinged joints 62 of this base part and 63.Hinged

joint

62,63 is used for producing clamping connector 49, comprises tongue 51 and other piece 52 according to Figure 15 and Figure 16, and therefore is installed in the place, end of base part 47 substantially.On the contrary, hinged

joint

62,64 is used for producing clamping connector 50, comprises tongue 55 and other piece 56, and therefore as being installed between the

hinged joint

62,63 seeing on the direction of longitudinal axis 48 (Figure 11).

Base part 47 and hinged joint 62 to 65 comprise many sweeps, and these sweeps are expressed as chain-dotted line in Figure 18, and for example with Reference numeral 66 to 74 indications.Because preferably about being constructed with the mirror image symmetric arrangement by the central plane of line 75 indications, so hinged

joint

63 and 65 has the sweep that does not have special indication, these sweeps are corresponding with sweep 66 to 74 for thin slice blank 61.Sweep 66 to 74 can be an imaginary line, but also can be the preliminary election nominal sweep that is limited by groove in hinged joint 62 to 65 etc.

In order to produce erecting device 39a, for example initially go for a stroll curve 66 crooked 90 ° of sheet metal 61 is so that set up the L shaped shape of base part 47.And hinged joint 62 is around every

sweep

67,68 crooked approximate 90 ° (top shown on Figure 19), and hinged joint 64 curve 70 crooked approximate 90 ° (top shown in also on Figure 19) of going for a stroll.Hinged

joint

63,65 is crooked in a similar manner.At last, the

director element

43 and 44 that is connected on

hinged joint

64 and 65 is gone for a stroll curve 72 to 74 with the desired mode bending of assembly for expression in Fig. 9 and 10, thereby the shape of the erecting device 39a shown in obtaining being used on Figure 20.Erecting device 39b produces in a similar manner.

Erecting

device

39a, 39b can be with the preform form storages of the description of Figure 20, transport and get build on-site.Here, according to the type of using, the end of earthing conductor 17 and/or

conductor segment

25,31 is inserted into, and

other piece

52,56

curve

69,71 of for example going for a stroll manually curves inwardly, introduce

clamp screws

53,57, and after screwing on

nut

54,58, clamping

tongue

51,55 and

other piece

52,56 relative to one another.For the ease of the manual bending process, the relevant portion of sheet metal 61 is provided with rectangle recess 76 and/or 77 at least in the zone of

sweep

69,71, and this rectangle recess 76 and/or 77 extends on the major part of the width of

hinged joint

62,64 and/or 63,65.

Consider this structure of hinged joint 62 to 65,

other piece

52,56 is initial or fracture may be crooked continually the time or when tightening clamp screws 53,57.The result,

other piece

52,56 may skid off from stayed surface when finally tightening

clamp screws

53,57, because described stayed surface is formed by narrow web 78,79 (seeing Figure 19 and 20), this

narrow web

78,79 exists at the place, end of

tongue

51,55, be arranged between

sweep

68,69 and/or 70,71, and substantially vertically outstanding for the other parts of hinged joint 51 and/or 55.This causes: when tightening

clamp screws

53,57, earthing conductor 17 and/or

conductor segment

25,31 can not sufficiently be clamped between

tongue

51,55 and the other piece 52,56.For fear of this,

sweep

69,71 and

recess

76,77 are so constructed, thereby form the nominal broken line, and pass through

other piece

52,56 front and back bendings, and

other piece

52,56 can easily be separated from web 78,79.As on Figure 21, representing, obtain the shape of erecting device 39a and/or 39b then.

The

other piece

52,56 that obtains by means of the nominal broken line shows in Figure 22 to Figure 27.Because the selected shape of

recess

76,77, they have short projection 80 or 81 (Figure 22,24) respectively at the place, end of broken line, and corresponding

projection

83,84 keeps standing in

web

78,79 places as shown in Figure 21.

When producing cutting sheet bar 61 (Figure 19), other piece 52 and 56 free leading edge 85,86 all are respectively equipped with recess 87 or 88 at its place, end, this recess 87 or 88 is also illustrated among Figure 22 to Figure 27, and its size is corresponding with the size of projection 83 in Figure 21 and 84 substantially.This is used for being placed into web 78,79 (Figure 21) separating other piece 52,53 in such a way rotate 180 ° as shown in Figure 26 and Figure 27 after, make and to remain on end margin 85 between recess 87 and 88 and 86 section is placed on the free end edge of web 78 and/or 79, and projection 84,85 is admitted by appointment recess 87 and 88, thereby obtains being used for the qualification support of the end margin 85,86 on web 78,79.And, the length of other piece 52,56 is so selected, thereby projection 80 and 81 itself on Figure 10 and Figure 18 indicated this state lower support at base part 47 places, and play pad then, even thereby insert and dead earth conductor 17 and/or conductor segment 25,31 after, the qualification that also remains on the end margin 85,86 of the other piece 52,56 on the relevant web 78,79 is supported.

In this distortion, as for example by Figure 10,17, and 18 in zoomed-in view show, locate in the place between base part 47 and clamp screws 53,57, promptly in the side away from the clamp screws 53,57 of the strong point on

web

78,79, earthing conductor 17 and/or

conductor segment

25,31 are inserted between

tongue

51,55 and the other piece 52,56.As its result, when tightening clamp screws 53,57, do not have undesirable leverage to be applied on the

other piece

52,56, and thereby guarantee the reliable and firm clamping of earthing conductor 17 and

conductor segment

25,31.

The principal advantages of these measures of describing in Figure 21 to Figure 27 and representing is the fact: can intactly prefabricated erecting device 39a, 39b.For this purpose, also advantageously, after according to the BENDING PROCESS of Figure 20 and/or 21,

nut

54,58 is fixed on the

tongue

51,55, and loosely clamp screws 53,57 is screwed in them by welding etc.In build on-site, only require and build erecting device 39a, the 39b of unit and shift onto on cross member 40b, the 40b forming single type, and then by unclamping and/or tightening four

clamp screws

53,57 clamping earthing conductor 17 and/or

conductor segment

25,31 securely.

As particularly Figure 24,25, and 27 in the expression, each other piece 56 is provided with second director element 44 (also seeing Figure 17).If other piece 56 is in thin slice blank 1 place and consistently so design of the above description that provides, make it during BENDING PROCESS separated in case it with the mode described Rotate 180 ° backward, this must be by the suitable prebuckling of second director element 44 and considers fully so.Therefore, Figure 20 represents, each of second director element 44 is by prebuckling so and be installed on the other piece 56, thereby have only that if other piece 56 is separated with the web 79 of tongue 55 really, Rotate 180 ° and being placed on the web 79 with correct layout then, then second director element 44 just obtains their tram.

The embodiment that describes by Figure 19 to Figure 27 has advantage: can obtain erecting

device

39a, 39b by individual plates 61 by simple bending apparatus.Realize low-cost production and low-cost assembling thus, the latter does not require the preparation about

stator segment

1a, 1b and

cross member

40a, 40b.

The invention is not restricted to can diversified in many ways the embodiments described herein.For example, sleeve 11 can be two-piece type or multi-piece type structure, and is being connected respectively on each side of long stator 1 on the earthing conductor 17, and in this case, the described formation of loop should be provided on the both sides of each critical burble point 22.In addition, the erecting device 39a, the 39b that describe by Figure 10 to Figure 27 can change in many ways, particularly about their shape and size and adding and structure about director element 43 and 44.And, might provide simple rivet to connect rather than described clamp screws, suitable screwed hole rather than nut 54,58 is provided perhaps for each tongue 51,55 or each other piece 52,56.Also self-explantoryly be that various piece relative position and the length of erecting device 39a, 39b relative to each other should with due regard to selecting by means of the position of cross member 40.If there is not cross member 40, if perhaps they are unsuitable for secure mounting arrangements 39a, 39b, then the latter also can be fixed on stator segment 1a, the 1b by means of screw etc. as anchor clamps 33 naturally.Also might use other earthing conductor 17 and/or conductor segment 25,31.In addition, the present invention also relates to be equipped with the magnetic suspended railway of the long stator of description.At last, self-explantoryly be that different features also can be with the applied in any combination except that those of above description and expression.

Claims

1. long stator that is used for magnetic suspended railway comprises: and a plurality of stator segments (1a, 1b), described stator segment (1a, 1b) one is arranged in another back and locates to adjoin each other at burble point (22), and (1a 1b) has the groove (2) and the tooth of following each other in a longitudinal direction to described stator segment; At least one AC Windings (4), described AC Windings (4) are arranged in the described groove (2); And at least one earthing conductor (17), described earthing conductor (17) is gone up along the longitudinal direction to extend and is used for described AC Windings (4) ground connection, it is characterized in that, described earthing conductor (17) comprises conductor segment (25 at least near this critical burble point (22), 31), the described burble point of described conductor segment (25,31) bridge joint (22) and be configured to loop (24,32).

2. long stator according to claim 1, it is characterized in that described conductor segment (31) is configured to a continuous part of described earthing conductor (17), and on the both sides of described critical burble point (22), (1a's described conductor segment (31) 1b) is connected with the stator segment that adjoins securely.

3. long stator according to claim 2 is characterized in that, described loop (32) be secured to stator segment (1a, those some places that adjoin with described burble point (22) on 1b), between described burble point (22), have no more than two groove (2a, 2b).

4. according to claim 2 or 3 described long stators, it is characterized in that, described conductor segment (31) respectively by means of anchor clamps (33) be secured to the associated stator section (1a, 1b) on.

5. according to any described long stator in the above claim 2 to 4, it is characterized in that, on each side of critical burble point (22), described conductor segment (31) by means of at least one clamping connector (49) be secured to relevant stator segment (1a, 1b) on.

6. long stator according to claim 1, it is characterized in that, forming under two free-ended situations, described earthing conductor (17) interrupts in the zone of critical burble point (22), and described conductor segment (25) electrically connects described two free ends each other.

7. long stator according to claim 6 is characterized in that, two free ends of described earthing conductor (17) are provided with safeties (23) and connect to prevent them.

8. according to claim 6 or 7 described long stators, it is characterized in that described conductor segment (25) is secured on two free ends of earthing conductor (17) by movable clamping connector (26).

9. long stator according to claim 8 is characterized in that, described clamping connector (26) is made by stainless steel.

10. according to Claim 8 or 9 described long stators, it is characterized in that described clamping connector (26) is provided with anti-twist element (28), perhaps is configured to such element.

11., it is characterized in that (1a, 1b) (39a 39b) is connected on two free ends of earthing conductor (17) erecting device on described conductor segment (25) by means of being fastened to the associated stator section according to claim 6 or 7 described long stators.

12. long stator according to claim 11, it is characterized in that, described stator segment (1a, 1b) be provided with cross member on the guide rail of estimating to be used for to be fastened to magnetic suspended railway (40a, 40b), and described erecting device (39a, 39b) comprise two, described director element (43 with preselected distance director element respect to one another (43,44), 44) each expectation is used for being pulled to described cross member, and (40a is on 40b) one of them.

13., it is characterized in that (39a 39b) comprises the free-ended two pairs of clamping connectors (49,50) that are used for earthing conductor (17) and conductor segment (25) to each erecting device according to claim 11 or 12 described long stators.

14. long stator according to claim 13 is characterized in that, described clamping connector (49,50) comprises tongue (51,55) and other piece (52,56) respectively, described tongue (51,55) be affixed to described erecting device (39a, 39b) on.

15., it is characterized in that (39a 39b) is made by the dicing sheet blank (61) of single type described erecting device according to any described long stator in the above claim 11 to 14.

16., it is characterized in that described other piece (52,56) is by separating a separated part that obtains with described thin slice blank (61) according to claim 14 or 15 described long stators.

17., it is characterized in that (39a 39b) is made by stainless steel described erecting device according to any described long stator in the above claim 11 to 16.

18., it is characterized in that described tongue (51,55) and other piece (52,56) are extended with clamp screws (53,57) according to any described long stator in the above claim 14 to 17.

19. long stator according to claim 18 is characterized in that, the nut (54,58) that is fastened on described tongue (51,55) or the other piece (52,56) is assigned to clamp screws (53,57).

20., it is characterized in that (39a 39b) is complete prefabricated building block to each erecting device according to any described long stator in the above claim 11 to 19.

21. magnetic suspended railway with long stator, described long stator is as the part of long-stator linear motor, wherein said long stator comprises groove (2) and is inserted into AC Windings (4) in the described groove (2), described winding has the sheath of partially conductive (21) at least, and wherein earthing conductor (17) is disposed on the longitudinal direction of described long stator, it is characterized in that, at least at two stator segment (1a, near the critical burble point (22) 1b), described earthing conductor (17) comprises loop (24,32), described loop (24,32) is according to one in the above claim 1 to 20 or the described burble point of multinomial bridge joint (22).